01 -
Heat butter, then soften garlic and leeks for 10 minutes. Keep the heat low so they don't brown.
02 -
Stir in potatoes, herbs, salt, pepper, and stock. Let it boil, then turn down the heat, cover, and cook for 15 minutes until the potatoes fall apart easily.
03 -
Take out the herbs, then blend until silky smooth with an immersion blender or a regular one in portions.
04 -
Stir in cream, then simmer briefly. If it's too thick, thin it out with extra stock. Sprinkle with chives before serving.